# How do you solve the triangle ABC given a=7, B=60, c=9?

##### 1 Answer

Jan 10, 2017

#### Answer:

Use the Law of Cosines to find the length of side b.

Use the Law of Sines to find A.

The sum is 180 for C.

#### Explanation:

Use the Law of Cosines to find the length of side b.

Substitute, 7 for a, 9 for c, and 60 for B:

Use the Law of Sines to find A.

Substitute, 7 for a,

The sum of the angles is equal to

Solve for C: